88fe63557d
When validateAndSet fails we must reset the mDoable flag to false and close the fb device. This will prevent making a draw call using invalid resource references and prevent any fd leaks. Additionally, we should only turn AD on if there are no configuration errors during prepare call. This will prevent toggling AD between on/off state in the face of continuous failures. Change-Id: I15502dbf64c6203092aa13e001bab5d27b0e17ec
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
/*
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* Copyright (c) 2013 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef HWC_AD_H
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#define HWC_AD_H
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#include <overlayUtils.h>
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#include <hwc_utils.h>
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struct hwc_context_t;
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namespace qhwc {
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class AssertiveDisplay {
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public:
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AssertiveDisplay(hwc_context_t *ctx);
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void markDoable(hwc_context_t *ctx, const hwc_display_contents_1_t* list);
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bool prepare(hwc_context_t *ctx, const hwc_rect_t& crop,
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const overlay::utils::Whf& whf,
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const private_handle_t *hnd);
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bool draw(hwc_context_t *ctx, int fd, uint32_t offset);
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//Resets a few members on each draw round
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void reset() { mDoable = false;
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mDest = overlay::utils::OV_INVALID;
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}
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bool isDoable() const { return mDoable; }
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int getDstFd() const;
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uint32_t getDstOffset() const;
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private:
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bool mDoable;
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bool mTurnedOff;
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//State of feature existence on certain devices and configs.
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bool mFeatureEnabled;
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overlay::utils::eDest mDest;
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void turnOffAD();
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};
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}
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#endif
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